PALMYRA, SYRIA. MARCH 27, 2016. Ruins of the Monumental Arch destroyed by ISIS militants in Palmyra, a UNESCO world heritage site. A substantial number of statues, temples and other structures were destroyed by militants of the Islamic State (ISIS) after they took Palmyra under control in 2015. Palmyra was liberated from ISIS by the Syrian government army on March 27, 2016. Valery Sharifulin/TASS (Photo by Valery Sharifulin\TASS via Getty Images)